PyDev has a feature to quickly execute the unit tests from withing the IDE. It also allows selecting the unit test cases to run. But it displays the usual textual output, no graphical representation of the test results.
The best solution I've ever seen (and actively used) is Wing IDE's Testing pane, which displays a tree of test results with output and traceback as needed. That's pretty usable, but not for Eclipse, unfortunately. I just mentioned this, because it might help you in some way or give you an idea on how to implement this for Eclipse in the future.